103000003021 has 4 divisors (see below), whose sum is σ = 103042620252. Its totient is φ = 102957385792.

The previous prime is 103000003009. The next prime is 103000003027. The reversal of 103000003021 is 120300000301.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 91972692900 + 11027310121 = 303270^2 + 105011^2 .

It is a cyclic number.

It is not a de Polignac number, because 103000003021 - 2²³ = 102991614413 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 103000002989 and 103000003007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103000003027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21304990 + ... + 21309823.

It is an arithmetic number, because the mean of its divisors is an integer number (25760655063).

Almost surely, 2^103000003021 is an apocalyptic number.

It is an amenable number.

103000003021 is a deficient number, since it is larger than the sum of its proper divisors (42617231).

103000003021 is an equidigital number, since it uses as much as digits as its factorization.

103000003021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42617230.

The product of its (nonzero) digits is 18, while the sum is 10.

Adding to 103000003021 its reverse (120300000301), we get a palindrome (223300003322).

The spelling of 103000003021 in words is "one hundred three billion, three thousand, twenty-one".